Two Posters at ESMO Congress 2025 Highlight Immutep’s Focus on Changing Treatment Landscape in First Line Non-Small Cell Lung Cancer

Core Insights - Immutep Limited is focusing on changing the treatment paradigm for first-line non-small cell lung cancer (1L NSCLC) through innovative immunotherapy approaches [1][5]. Clinical Trial Results - The INSIGHT-003 trial demonstrated strong objective response rates (ORR) and disease control rates (DCR) for the combination of eftilagimod alfa (efti) with KEYTRUDA (pembrolizumab) and chemotherapy in patients with advanced or metastatic non-squamous 1L NSCLC [2][5]. - The ORR for patients with low and no PD-L1 expression (TPS <50%) reached 61.7%, significantly higher than the historical control of 40.8% [3][5]. - The combination therapy showed high ORR and DCR across all PD-L1 expression levels, with specific rates of 54.5% (no PD-L1), 68.0% (low PD-L1), and 75.0% (high PD-L1) [4]. Safety and Efficacy - The combination of efti with KEYTRUDA and chemotherapy has a favorable safety profile and has shown promising clinical responses, particularly in patients with low or absent PD-L1 expression [3][5]. - Efti is expected to set a new standard of care for 1L NSCLC patients, supported by data from multiple clinical trials, including the pivotal TACTI-004 Phase III trial [5][8]. Future Developments - The TACTI-004 Phase III trial is a global study enrolling approximately 756 patients with advanced/metastatic 1L NSCLC, evaluating the same immunotherapy/chemotherapy combination used in INSIGHT-003 [5][6]. - Efti is under evaluation for various solid tumors, including head and neck squamous cell carcinoma and breast cancer, and has received Fast Track designation from the FDA for first-line treatments [8]. Company Overview - Immutep is a late-stage biotechnology company specializing in novel immunotherapies for cancer and autoimmune diseases, leveraging its expertise in Lymphocyte Activation Gene-3 (LAG-3) [9].